Liquid storage reservoir

Abstract

A liquid storage reservoir that includes a housing, an inflow port, an outflow port, and an introduction pipe connected to a downstream-side end portion of the inflow port to introduce a liquid into the housing. The inflow port is connected to the housing in a posture intersecting a vertical direction. The introduction pipe is formed to be tubular, and has a shape extending vertically downward from the downstream-side end portion of the inflow port. The housing has an opposed wall formed at a position opposed to a lower end portion of the introduction pipe, and a guide wall that guides the liquid downward from the opposed wall.

1 : A liquid storage reservoir comprising:
 a housing that is able to store a liquid;   an inflow port connected to an upper portion of the housing to allow the liquid to flow into the housing;   an outflow port connected to a lower portion of the housing to allow the liquid to flow out of the housing; and   an introduction pipe connected to a downstream-side end portion of the inflow port to introduce the liquid into the housing, wherein   the inflow port is connected to the housing in a posture intersecting a vertical direction, the introduction pipe is formed to be tubular, and has a shape extending vertically downward from the downstream-side end portion of the inflow port,   the housing has
 an opposed wall formed at a position opposed to a lower end portion of the introduction pipe, and 
 a guide wall that guides the liquid downward from the opposed wall. 
   
     
     
         2 : The liquid storage reservoir according to  claim 1 , wherein the downstream-side end portion of the inflow port has a wall surface opposed to flow of the liquid. 
     
     
         3 : The liquid storage reservoir according to  claim 1 , wherein the opposed wall has a shape that gradually extends downward in a direction toward the guide wall. 
     
     
         4 : The liquid storage reservoir according to  claim 1 , wherein
 the opposed wall has a center-opposed portion located vertically below a center of the lower end portion of the introduction pipe, and   a distance between the center of the lower end portion of the introduction pipe and the center-opposed portion is 0.1 time or more and 0.8 time or less as large as an inner diameter of the lower end portion of the introduction pipe.   
     
     
         5 : The liquid storage reservoir according to  claim 1 , wherein the inflow port has a shape with an inner diameter gradually decreased in a direction toward the introduction pipe. 
     
     
         6 : The liquid storage reservoir according to  claim 1 , wherein the introduction pipe has a shape with an inner diameter gradually increased in a downward direction. 
     
     
         7 : The liquid storage reservoir according to  claim 1 , wherein the housing further has an intersecting wall having a shape extending from a lower end portion of the guide wall in a direction intersecting the guide wall. 
     
     
         8 : The liquid storage reservoir according to  claim 7 , wherein
 the housing further has a tubular portion provided below the intersecting wall,   the outflow port is connected to a lower end portion of the tubular portion, and   the tubular portion has a shape having a cross section gradually decreased in a direction toward the outflow port.   
     
     
         9 : The liquid storage reservoir according to  claim 8 , wherein
 the housing further has a coupling wall that couples the intersecting wall and the tubular portion to each other, and   the coupling wall has a shape inclined to extend gradually downward in a direction toward the tubular portion.